Cutting device



July 27, 1937; J, E, co -K v 2,088,162

CUTTING DEVICE Filed March 16, 1956 s Sheets-Sheet 1 ATTORW I July 27, 1937. I J. E. ccox CUTTING DEIVICE Filed March 16, 1936 3 Sheets-Sheet 2 INVENTOR Alma -oo BY ATTORNEY J. E. COOK CUTTING DEVICE July 27, 1937.

Filed March 16, 19:56 3 Sheets-Sheet s INVENTOR x ww EW -Qok BYQ E 3 ATTORN EY Patented July 27, 1937 PATENT OFFICE CUTTING DEVICE Jerome E. Cook, Larchmont, N. Y., assignor to B g-eloW-Sanford Carpet'Oo. Inc., Thompsonvlllc, Conn., a. corporation of Massachusetts Application March 16, 1936, Serial No. 69,058

' 11 Claims. ('1. 267) My invention relates to a cutting mechanism and particularly to a device of that character adapted for use in rug manufacture for. cutting designs or for embossing preformedcolored' designs in the pile surface of a rug, for bevel cut ting the edge of the pile surface, or the like.

It is an object of my invention to provide a simple, compact, easily manipulated and accurately operating device of this character well adapted for these Various/uses because of its capacity for forming cuts of varying depths and of different bevel angularities.

In my device I provide a cutter which is mounted on a base. plate and is adjustable relatively thereto so as to. allow the varying angu-' larity and depth of out. In addition my cutter is preferably so mounted relative to said plate as to. be capable ofwithdrawal from' operativev position without moving. the base plate and in} dependently of the adjusting mechanisms',.which capacity is of value in commencing. and terminating cutting operations accurately; especially in the production of interrupted cuts My de-.

vice may also have associated therewith adjustable indicating means .and gauges which aid operation along predetermined paths.

The accuracy of my device and ease of adjust-- ment and manipulation allows its use in producing a variety of patterns or embossed effectsin,

rugs as well as the beveling of the edges around a colored design.

The benefits of my invention will appear more fully in the accompanying description taken. in connection with the drawings, in which: Fig. 1 is a plan view of my mechanism; Fig. 2 is a side elevation thereof; Fig. 3 is an end elevation,showing my cutter in position for a bevel cut;

Figs. 4, 5 and 6 are perspective views of indi vidual parts of my assembly;

Fig. '7 is a perspective illustration of my mechanism in operation;

Figs. 8, 9 and 10 are cross-sectional illustrations of varying cuts accomplished bymy mechanism; and,

' Fig. 11 illustrates a border pattern.

As indicated in Fig. 1, my device includes a base plate l2 adapted to bear on a fabric surface, such as a pile rugA, which plate is'preferably u shaped at cn'efend to provide arecess generally indicated at M. Mounted on this base is a sup-port, such as It, which, as illustrated in Fig. 2, may be provided with a handle l8 supported at its other end by a bracket 20a secured to the base plate l2, such as by screws.

of a reciprocating cutter of the clipper type,

driven by an electric motor enclosed in the casing 28. As illustrated in Fig. '7, the casing may be provided with a switch 30 and the motor may be supplied with electric power from a source of supply through the cord 32. The cutter and its accompanying motor is of a construction well known and need not be further described.

The motor and cutter are mounted on a carriage in the following manner:

As shown in Fig. 2 the motor casing 28 is secured by a circular bracket 34 to a flat plate 35. The plate 36 is provided on its back side with a rack 38 as; shown in Fig. 6 and has opposite edges 40, 40, adapted to slide in grooves 42, in-a carriage member illustrated in Fig. 5. When assembled, therack 38 engages a pinion 46 mounted on a shaft 48 which is journaled in bearings in the sides of the carriage-44, and the shaft 48 and pinion 45 maybe rotated by knurled thumb wheel 5!! and may be set at any desired position by the knurled thumb nut 52. The cutter 26 may thus be adjusted vertically with respect to carriageM.

To-mount the carriage member 44, the carriage is provided on its back face with a bearing surface 54 and'a screw threaded hole 55, which isadapted to receive a threaded bolt 56 journaled in bearing .24 in slide 22 and passing through vertical slot 2| in support [6. Bolt 56 has a collar .51 (Fig. 2) loosely fitting in slot 2| and bearing against slide 22 and a head 59 bearing against support Iii. The head 59 in turn is connected by a universal joint 58 to a rod 60. extending beneath the handle 18 and passing loosely through bracket 26a. Rod 6i) is provided with rotating means such as a thumb wheel 62 mounted on its end. -.Rotation of the thumb wheel 62 to rotate rod 60 with respect to support [6 will move carriage 44 as bolt' 56 progresses into hole 55 to bringbearing surface 54- into frictional en gagement with bearing surface 25 to hold carriage Min a fixed position relative to slide 22 which is held against collar 51. The carriage 44 and accompanying cutter may thus be adjusted by loosening the bearing surfaces 54 and 25 and pivoting the carriage 44 around on bolt 56 relative to the slide 22, and then re-engaging the surfaces by means of thumb wheel 62. Cutting paths with any desired angular relationships relative to the base plate may be provided with this arrangement.

As previously described, the cutter edge 26 may be adjusted vertically with respect to the base I2 and slide 22 bymeansof the pinion 46 and rack 38, thumb wheel 50 and the thumb nut 52, and may thus project for operative purposes beyond the plane of base I2 through recess I4, to provide any desirable depth of out.

By reason of the mounting of both the carriage 44 and the cutter 26 on slidable plate 22, even after the configuration and depth of out have been regulated, the cutter 26 may be manually raised with respect to the base plate I2 by manipulation of the rod 60 pivotally around its journal bearing in bracket 20a raising bolt 56 in slot 2| guided by collar 51 and head 59 and raising slide 22 in guides 20. The bearing surfaces 54 and 25 are held in frictional engagement during the raising of the slide 22 by the lift lever 66, but such engagement does not clamp slide 22 or head 59 to support I6 because of collar 51. The cutter 26 may therefore return to adjusted operative position through gravity upon release of lift rod 60, the lowermost position of the cutter being determined by abutment of the collar 51 against the bottom of slot 2|. Because of its adjacency to handle I8, rod 60, acting as a lift lever, may be manipulated as shown in Fig. 7 without the operator removing his hand from the handle I8.

After securing a suitable angular adjustment of the cutter 26 with respect to the base plate I2, and a suitable depth limit by adjustment of the thumb wheel 50, bevel cuts illustrated in Figs. 8 and 9 may be made in the pile of the rug by placing the base plate on the rug, starting the motor while maintaining the cutter elevated above the base plate through manipulation of the lift lever 60 and then allowing the cutter to drop into operative position below the base plate I2 by gravity. The whole mechanism is then moved manually along the surface of the rug by the operator, and cutting may be terminated by raising lift lever 60 without removing base plate I2 from work A.

Fig. 10 illustrates a cut made with the cutter 26 in a lateral parallel relation to the base plate.

As illustrated in Figs. 1 and 7 my base plate may be provided with an adjustable guide 10 which may take the form of a bar having two extensions I2, I2, which are adapted to be held against the base plate I2 by thumb screws I4, I4, mounted in brackets I6, I6. The bar I0 depends over the side of the base plate I2 as shown in Fig. 3, and is adapted to overhang the edge of a rug whereby the cutter 26 may be guided in a path parallel to the edge of the rug. Suitable adjustment may be made upon loosening of the thumb screws I4. Bar I9 may be removed when making cuts remote from the edge of the rug.

Indicating means may also be associated with the base plate I2, as follows:

A rod 80, as shown in Fig. 1, is mounted for longitudinal movement in posts 82, 82 and may be fixed against movement by thumb screw 84. Also mounted on the rod is a collar 86 adapted for longitudinal movement thereon (as shown in dotted lines in Fig. 1), and provided with a set screw 85 to fix the collar against longitudinal movement. The forward end 9!] of the indicating means may therefore be set at a predetermined ,distance from the cutter 26, and likewise the collar 86 may be independently adjusted a predetermined distance from the cutter 26.

This indicating means may aid the operator in commencing and terminating cuts which are indented from the edge of the rug. The plate I2 may be positioned on the rug with the cutter 26 elevated with respect to the base, and the operator may move the base plate along the rug until the screw 85 reaches the entering rug edge whereupon the operator may release the lift rod 68 and cutting will commence, as at point x in Fig. 11. After moving the machanism over the rug, guided if desired by the gauge the operator terminates the cutting operation by lifting the lift lever 60 when the forward end of the indicating means 99 reaches the opposite edge of the rug terminating the cut at point Fig. 11. accurately indented borders, such as illustrated in Fig. 11, may be readily made.

I claim.

1. Apparatus of the character described comprising a base, a cutter mounted on said base and adapted to project into operative position below the plane thereof, means to vary the limit of said projection, means to vary the lateral angular relationship between the edge of said cutter and the plane of said base and means operative independently of both said varying means to move said cutter with respect to said base to Withdraw said cutter from operative position.

2. Apparatus of the character described, comprising a base plate, a support, a carriage pivotally mounted on said support and vertically movable relative to said base plate independently of pivotal movement thereof, means to fix said carriage against pivotal movement, and a cutter mounted on said carriage adapted to project below the plane of said base, said cutter being adjustable relative to said carriage to vary the lower limit of vertical movement thereof.

3. Apparatus of the character described, comprising a base, a cutter mounted thereon and adapted to project below the plane thereof, means to fix selectively the limit of projection of said cutter, and means to elevate said cutter with respect to said base independently of said fixing means.

4. Apparatus of the character described comprising a base, a cutter mounted thereon adapted to project into an operative position below the plane of said base, means to move said cutter with respect to said base to Withdraw said cutter from operative position, and. means to vary the lateral angular relationship between the edge of said cutter and the plane of said base.

5. Apparatus of the character described, comprising a base, a cutter mounted on said base projecting below the plane of said base, means to vary the limit of projection of said cutter, and means to vary the angular relationship between the edge of said cutter and the plane of said base.

6. Apparatus of the character described comprising a base, a support, a cutter pivotally mounted on said support and projecting below the plane of said base and means to secure said cutter in different pivotal positions with respect to said support to adjust the lateral angular relationship between the edge of said cutter and the plane of said base.

7. Apparatus of the character described comprising a base, a cutter mounted thereon and In such manner,

adapted to project below the plane thereof, indicating means comprising a rod mounted on said base and adjustable longitudinally with respect to the path of said cutter, and further indicating means mounted on said rod for independent longitudinal movement thereon.

8. In a device for cutting pile surfaces, the combination of a base plate adapted to rest on the surface of the pile, a cutter projecting below the plane of the bottom of the base plate to cut pile beneath the base plate, a cutter support movably mounted on the base plate for permitting movement of the cutter from an inoperative position above the pile to an operative position in cutting engagement therewith and below the plane of the bottom of the base plate, stop means to determine the operative position of the cutter below the base plate, and manually operable means for lifting the cutter, with relation to the base plate, to inoperative position.

9. In a device for cutting pile surfaces, the combination of a base plate adapted to rest on the surface of the pile, a cutter projecting below the plane of the bottom of the base plate to cut pile beneath the base plate, a cutter support movably mounted on the base plate for permitting movement of the cutter from an inoperative position above the pile to an operative position in cutting engagement therewith and below the plane ofthe bottom of the base plate, adjustable stop means limiting the movement of the support toward the pile surface for gauging the depth of cut by a predetermined distance below the plane of the bottom of the base, and manually operable means for lifting the cutter, with relation to the base plate, to inoperative position.

10. In a device for cutting pile surfaces, the combination of a base plate adapted to rest on the surface of the pile, a cutter projecting below the plane of the bottom of the base plate to cut pile beneath the base plate, a cutter support movably mounted on the base plate for permitting movement of the cutter from an inoperative position above the pile to an operative position in cutting engagement therewith, stop means to determine the operative position of the cutter below the base plate, adjustable means securing the cutter at an angle laterally of the plane of the base for forming a cut of predetermined inclination, and manually operable means for lifting the cutter, with relation to the base plate, to its inoperative position.

11. In a device for cutting pile surfaces, the combination of a base plate adapted to rest on the surface of the pile, a cutter projecting below the plane of the bottom of the base plate to cut pile beneath the base plate, a cutter support slidably mounted on the base plate for permitting movement of the cutter from an inoperative position above the pile to an operative position in cutting engagement therewith, adjustable stop means limiting the movement of the support toward the pile surface for gauging the depth of cut by a predetermined distance below the plane of the bottom of the base, adjustable means securing the cutter at an angle laterally of the plane of the base for forming a cut of predetermined inclination, and manually operable means for lifting the cutter, with relation to the base plate, to its inoperative position.

JEROME E. COOK. 

